本程序应用多端口网络方程和故障端口边界方程联立求解的方法,计算电力系统各种多重故障及任意不对称运行的电压和电流。
In this program the voltage and current of simultaneous faults or unbalanced power system are calculated by solving the simultaneous equations of multi-port network and of the fault boundary.
为了提高计算效率,将多重网格方法应用到方程的数值求解中来加速收敛。
The multigrid techniques are added to accelerate the convergence of flow and adjoint equations to improve the efficiency of design.
我们用多重尺度方法,推导出了它的振幅方程。
By the virtue of method of multiple scales, we have derived the amplitude equation.
本文主要研究高阶微分方程周期边值问题解的存在性与多重性。
We mainly study the existence and multiplicity of solutions to high-order differential equations in this paper.
通过极小化作用原理和极小极大方法得到了一类四阶非线性椭圆方程解的存在性和多重性。
The existence and multiplicity results are obtained for a class of fourth-order nonlinear elliptic equations by the least action principle and the minimax methods, respectively.
讨论了带非负扰动的临界非齐次多重调和方程多解存在性和非存在性。
This paper deals with the existence and nonexistence of solutions for a critical semilinear polyharmonic equation with a non-negative perturbation.
讨论了带非负扰动并具有第二类边值的临界非齐次多重调和方程的多解存在性和非存在性。
This paper deals with the existence and nonexistence of solutions for a critical semilinear polyharmonic equation with the second boundary and with a non-negative perturbation.
利用一个著名的不动点指标定理,获得了该方程周期正解的存在性、多重性和不存在性。
By using a well-known fixed point index theorem, we obtain the existence, multiplicity and nonexistence of positive periodic solution(s) to this equation.
其中在多重模糊推理神经网络中,通过求解模糊关系方程的方法来确定网络的权值。
In the neural network corresponding to multidimensional fuzzy inference, the weights are adjusted by means of solution to fuzzy relation equation.
利用多重网格法的思想,构造出一种求解椭圆型方程边值问题的预处理迭代格式,并给出了收敛性证明。
By use of multigrid method, this paper proposes a preconditioned iteration method solving the boundary value problem of elliptic equations, the proof of convergence is given.
接着对速度空间提出一种类似的网格转移算子,并给出W循环的多重网格法来解对应的代数方程组。
Then a similar intergrid transfer operator is given for the spaces of velocity, and the W-cycle multigrid method is presented for solving the algebraic equations.
在供热机组热力系统分析计算中,完善了多重循环分析思路,构建了适于计算循环排汽系数(或再热系数)的EEDM补充方程。
In thermal system analysis of co-generation unit, the paper has perfected the analysis thought of multiple cycle, and constructed the supplement equation of the EEDM equation.
本文从非线性粘弹性物质的多重积分型本构方程出发,引入塑性应变,推导了粘弹塑性物质的微分型本构方程。
Introducing the plastic strain the differential constitutive equation for viscoelastic and plastic materials is deduced from multi-integral constitutive equation for nonlinear viscoelastic materials.
还有的研究者认为,所有的介质的渗流方程都采用达西渗流是多重连续介质模型无法预测底水锥进的原因。
Others thought that that multi-continuum models could not be used to predict bottom water coning was resulted from the applying Darcy flowing in all the medium percolation equations.
本文证明了关于对称泛函临界点的一个定理并用以研究非线性椭园型偏微分方程的多重解。
In this paper we prove a theorem for the critical points of symmetric functionals through which we research the multiple solutions of nonlinear elliptic PDE.
提出未扰动系统出现多重周期解的条件,并给出了一些特殊方程零解的具体重数作为应用;
First, some conditions for the existence of a multiple periodic solutions are given and the multiplicity problem for zero solution of some concrete equations is investigated as applications.
数值实验表明这种代数多重网格法对求解二次拉格朗日有限元方程是健壮和有效的。
Numerical experiments show our AMG method is robust and efficient for solving the quadratic Lagrangian finite element system.
将该问题的基本方程化为具有两个小参数的二阶非线性方程组,并在双参数摄动法和单参数多重尺度法的基础上提出了双参数多重尺度法。
The governing equations for the problem is modified into a second-order nonlinear differential system with two infinitesimal parameters and a double parameter multiple scale method is presented.
多重网格法是求解椭圆型方程边值问题的一种快速迭代算法。
The multigrid method is an efficient numerical iteration algorithm for solving elliptic variational problems.
本文主要对求解二维弹性力学问题高次有限元方程的代数多重网格(amg)方法进行了讨论与探讨。
In this paper, we discussed to Algebraic Multigrid (AMG) method for higher-order finite element equations in two dimensional linear elasticity.
针对非结构化网格上迭代收敛速度会逐渐减慢的特点,引入了多重网格求解技术,采用了其中效率较高的代数多重网格方法对离散方程进行求解。
To overcome the reduced convergence speed of iteration method, multigrid method is introduced and algebraic multigrid is adopted to solve discretized equations because of its higher effectiveness.
看出,截谱模式方法的最大成功之处在于揭示了大气中多重平衡现象。 利用此法可将模式方程转化为耦合常微分方程组。
It is shown that, the method of truncated Spectral model clealy exhibits great excellence for establishment of the multiple equilibration phenomenon in the atmosphere.
本文运用自适应并行多重网格法求解了轴向大扰动、径向小扰动的跨音速方程。
In this paper, the adaptive parallel Multigrid algorithm is applied in solving transonic flow equation with large disturbance in the axial direction and small disturbance in the transverse direction.
本文从可压缩情况下的流体力学方程出发,采用多重尺度方法和W。
Starting from the compressible hydrodynamic equations and using multiple scale method and W.
为求减轻计算负荷,在模式预测控制架构中,上述之多重模式即可作为预测方程序来计算程序未来的输出值。
To reduce the computational load, these multiple linear models are then used as prediction equations in an MPC framework.
为求减轻计算负荷,在模式预测控制架构中,上述之多重模式即可作为预测方程序来计算程序未来的输出值。
To reduce the computational load, these multiple linear models are then used as prediction equations in an MPC framework.
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